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Can you help me with question 7 please? Thank you!

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Q7.jpg

Q7.jpg

Q7. A bar's revenue increases by 18% when Cowboys win by playing well and by 9% when
Cowboys win but didn't play that well. It decreases by 12% when Cowboys lose. On a Cowboys
game day, what is the expected revenue change of this bar if each scenario (3 scenarios depicted
above) is equally likely?
(1.5 points)
Q8. What percent of a standard normal distribution M(mean = 0; std = 1) is found in each region?
(1.5 points)
(1) Z<-1.37
(2) Z > 1.43
(3) 0.4 <Z<1.56
( 4 ) 121 > 2.2
(1) =
(2) =
(3) =
(4) =

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